PRO-MIX HPCC MYCORRHIZAE is a professional-grade, high-porosity substrate that offers exceptional drainage and air retention in their root zone. It’s formulated with coarse peat moss and chunk coir, meaning it provides superior structure and airflow — making it perfect for fast-growing cultivars in high-frequency fertigation systems. With the addition of MYCORRHIZAE (Glomus intraradices), a beneficial fungus that promotes stronger root systems and more efficient nutrient uptake, growers can expect healthier plants and improved yields. It supports vigorous growth during veg and transitions seamlessly into flowering. With a low bulk density and quick-drying profile, it’s a great choice for indoor or greenhouse setups that demand precision feeding. If you want an added boost of the benefits of biostimulants, consider upgrading to PRO-MIX HPCC BIOSTIMULANT + MYCORRHIZAE. For a more traditional high-porosity substrate with a slightly finer texture, PRO-MIX HP MYCORRHIZAE is a solid choice.